<template>
  <div>
    <div style="margin: 10px 0">
      <el-input style="width: 200px" placeholder="请输入名称" suffix-icon="el-icon-search" class="mr-5" v-model="username"></el-input>
      <el-input style="width: 200px" placeholder="请输入邮箱" suffix-icon="el-icon-message" class="mr-5" v-model="email"></el-input>
      <el-input style="width: 200px" placeholder="请输入地址" suffix-icon="el-icon-position" class="mr-5" v-model="address"></el-input>
      <el-button class="ml-5" type="primary" @click="load">搜索</el-button>
      <el-button type="warning" @click="reset">重置</el-button>
    </div>

    <div style="margin: 10px 0">
      <el-button type="primary" @click="handleAdd" >新增 <i class="el-icon-circle-plus-outline"></i></el-button>
      <el-popconfirm
          class="ml-5"
          confirm-button-text='确定'
          cancel-button-text='我再想想'
          icon="el-icon-info"
          icon-color="red"
          title="您确定批量删除这些数据吗？"
          @confirm="delBatch"
      >
        <el-button type="danger" slot="reference">批量删除 <i class="el-icon-remove-outline"></i></el-button>
      </el-popconfirm>
<!--      :action="'http://'+serveIp+':8083/user/import'"-->
<!--      action="http://localhost:8083/user/import"-->
      <el-upload :action="'http://'+serveIp+':8083/user/import'" :show-file-list="false" accept="xlsx" :on-success="handleExcelImportSuccess" style="display: inline-block">
      <el-button type="primary" class="ml-5">导入 <i class="el-icon-bottom"></i></el-button>
      </el-upload>


        <el-button type="primary" @click = "exp" class="ml-5">导出 <i class="el-icon-top"></i></el-button>
    </div>

    <el-table :data="tableData" border stripe :header-cell-class-name="'headerBg'"  @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55"></el-table-column>
      <el-table-column prop="id" label="ID" width="80"></el-table-column>
      <el-table-column prop="username" label="用户名" width="140"></el-table-column>
      <el-table-column prop="role" label="角色" width="140">
        <template slot-scope="scope">
          <el-tag type="success" v-if="scope.row.role=='ROLE_ADMIN'">管理员</el-tag>
          <el-tag type="primary" v-if="scope.row.role=='ROLE_STUDENT'">学生</el-tag>
          <el-tag type="warning" v-if="scope.row.role=='ROLE_TEACHER'">老师</el-tag>
        </template>
      </el-table-column>
      <el-table-column prop="nickname" label="昵称" width="120"></el-table-column>
      <el-table-column prop="email" label="邮箱"></el-table-column>
      <el-table-column prop="phone" label="电话"></el-table-column>
      <el-table-column prop="address" label="地址"></el-table-column>
      <el-table-column label="操作"  width="350" align="center">
        <template slot-scope="scope">
          <el-button @click="handleDrawer(scope.row.id)" v-if="scope.row.role=='ROLE_TEACHER'" type="warning" style="margin-left: 16px;">该老师教授课程</el-button>
          <el-button @click="handleDrawerStu(scope.row.id)" v-if="scope.row.role=='ROLE_STUDENT'" type="primary" style="margin-left: 16px;">该学生选课信息</el-button>
          <el-button type="success" @click="handleEdit(scope.row)" v-bind:flagsave="true">编辑 <i class="el-icon-edit"></i></el-button>
          <el-popconfirm
              class="ml-5"
              confirm-button-text='确定'
              cancel-button-text='我再想想'
              icon="el-icon-info"
              icon-color="red"
              title="您确定删除吗？"
              @confirm="del(scope.row.id)"
          >
            <el-button type="danger" slot="reference" v-bind:flagsave="true">删除 <i class="el-icon-remove-outline"></i></el-button>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>
    <div style="padding: 10px 0">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </div>

    <el-dialog title="用户信息" :visible.sync="dialogFormVisible" width="30%" >
      <el-form label-width="80px" size="small">
        <el-form-item label="用户名">
          <el-input v-model="form.username" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="角色">
          <el-select v-model="form.role" placeholder="请选择">
            <el-option
                v-for="item in roles"
                :key="item.name"
                :label="item.label"
                :value="item.keyname">
              {{item.name}}
            </el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="昵称">
          <el-input v-model="form.nickname" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="邮箱">
          <el-input v-model="form.email" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="电话">
          <el-input v-model="form.phone" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="地址">
          <el-input v-model="form.address" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false" class="ml-5">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>

    <el-drawer
        :visible.sync="drawer"
        :direction="direction"
        :before-close="handleClose">
      <el-table
          :data="teacherCourseData"
          style="width: 100%">
        <el-table-column prop="id" label="课程id" width="100"></el-table-column>
        <el-table-column prop="name" label="课程名字" width="180"></el-table-column>
        <el-table-column prop="score" label="学分"></el-table-column>
        <el-table-column prop="times" label="学时"></el-table-column>
      </el-table>
    </el-drawer>
    <el-drawer
        :visible.sync="drawerstu"
        :direction="direction"
        :before-close="handleClose"
        size="600px">
      <el-table
          :data="StudentCourseData"
          style="width: 100%">
        <el-table-column prop="id" label="课程id" width="100"></el-table-column>
        <el-table-column prop="name" label="课程名字" width="180"></el-table-column>
        <el-table-column prop="score" label="学分"></el-table-column>
        <el-table-column prop="times" label="学时"></el-table-column>
        <el-table-column prop="teacher" label="授课老师"></el-table-column>
      </el-table>
    </el-drawer>
  </div>
</template>

<script>
import {serveIp} from '../../public/config.js'
export default {
  name: "User",
  data() {
    return {
      tableData: [],
      total: 0,
      pageNum: 1,
      pageSize: 10,
      username: "",
      email: "",
      nickname:"",
      address: "",
      flagsave:false,
      form: {},
      dialogFormVisible: false,
      multipleSelection: [],
      roles:{},
      serveIp:serveIp,
      drawer: false,
      direction: 'rtl',
      teacherCourseData:[],
      StudentCourseData:[],
      drawerstu:false

    }
  },
  created() {
    this.load()
  },
  methods: {
    load() {
      this.request.get("/user/page", {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          username: this.username,
          email: this.email,
          address: this.address,
        }
      }).then(res => {
        console.log(res)
        this.tableData = res.data.records
        this.total = res.data.total
      })
    },
    //左弹框
    handleClose(done) {
      this.$confirm('确认关闭？')
          .then(_ => {
            done();
          })
          .catch(_ => {});
    },
    handleDrawer(id){
      this.drawer=true
      this.request.get("/course/byid",{
        params:{
          id: id
        }
      }).then(res=>{
        console.log(res.data)
        this.teacherCourseData=res.data
      })
    },
    handleDrawerStu(id){
      this.drawerstu=true
      this.request.get("/course/students/info",{
        params:{
          id:id
        }
      }).then(res=>{
        this.StudentCourseData=res.data
      })
    },
    save() {
      console.log(this.flagsave)
    if(!this.flagsave){
      this.request.post("/user/inster", this.form).then(res => {
        if (res.data) {
          this.$message.success("添加成功")
          this.dialogFormVisible = false
          this.load()
        } else {
          this.$message.error("添加失败")
        }
      })
    }else {
      this.request.put("/user/", this.form).then(res => {
        if (res.data) {
          this.$message.success("修改成功")
          this.dialogFormVisible = false
          this.load()
        } else {
          this.$message.error("修改失败")
        }
      })
    }
    },
    handleAdd() {
      this.dialogFormVisible = true
      this.request("/role/").then(res=>{
        this.roles=res.data
      })
      this.form = {}
      this.flagsave=false
    },
    handleEdit(row) {
      this.form = JSON.parse(JSON.stringify(row))  //可以解决编辑未确认就改变的问题
      // this.form=row
      this.dialogFormVisible = true
      this.flagsave=true
      this.request("/role/").then(res=>{
        this.roles=res.data
      })
    },
    del(id) {
      this.request.delete("/user/" + id).then(res => {
        if (res.data) {
          this.$message.success("删除成功")
          this.load()
        } else {
          this.$message.error("删除失败")
        }
      })
    },
    handleSelectionChange(val) {
      console.log(val)
      this.multipleSelection = val
    },
    delBatch() {
      let ids = this.multipleSelection.map(v => v.id)  // [{}, {}, {}] => [1,2,3]
      this.request.post("/user/del/batch", ids).then(res => {
        if (res.data) {
          this.$message.success("批量删除成功")
          this.load()
        } else {
          this.$message.error("批量删除失败")
        }
      })
    },
    reset() {
      this.username = ""
      this.email = ""
      this.address = ""
      this.load()
    },
    handleSizeChange(pageSize) {
      console.log(pageSize)
      this.pageSize = pageSize
      this.load()
    },
    handleCurrentChange(pageNum) {
      console.log(pageNum)
      this.pageNum = pageNum
      this.load()
    },
    //导入接口
    handleExcelImportSuccess(){
      this.$message.success("导入成功");
      this.load()
    },
    //action="http://localhost:8083/user/import"
    // handleimport(){
    //   this.request("/user/import")
    // }
    //导出接口
    exp(){
      window.open(`http://${serveIp}:8083/user/export`)
    }
  }
}
</script>


<style>
.headerBg {
  background: #eee!important;
}
</style>
